Journal ArticleDOI
Cavity formation at the interface of a spherical inclusion in a plastically deformed matrix
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In this paper, a new theory for cavitation at the interface of a spherical inclusion in a plastically deformed matrix under uniaxial tensile stress is proposed, based on the energy calculation in and around the inclusion following Eshelby's transformation problem.Abstract:
A new theory for cavitation at the interface of a spherical inclusion in a plastically deformed matrix under uniaxial tensile stress is proposed. It is based on the energy calculation in and around the inclusion following Eshelby's transformation problem. It is shown that there is a size below which the fracture strain is inversely proportional to the square root of the particle size. There is also a size above which the applied stress causes cavitation without plastic strain.read more
Citations
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Overview No. 1: The nucleation of cavities by plastic deformation
S.H. Goods,L.M. Brown +1 more
TL;DR: A review of the literature concerning cavity nucleation as a result of plastic deformation indicates that at low temperatures there is a critical plastic strain required to nucleate a cavity.
Journal ArticleDOI
Cavity formation from inclusions in ductile fracture
A. S. Argon,Jay Im,R. Safoglu +2 more
TL;DR: In this article, the authors examined the conditions for cavity formation from equiaxed inclusions in ductile fracture and found that critical local elastic energy conditions are necessary but not sufficient for cavities formation.
Journal ArticleDOI
Dynamic failure of solids
TL;DR: In this article, the authors present a methodology that relates the kinetics of material failure on the microstructural level to continuum mechanics, by introducing micro-structural descriptions of damage into the continuum constitutive relations as internal state variables.
Journal ArticleDOI
Failure of metals I : brittle and ductile fracture
TL;DR: In this paper, the first overview of failure of metals is presented, focusing on brittle and ductile failure under monotonic loadings, where the focus is on linking microstructure, physical mechanisms and overall fracture properties.
Book ChapterDOI
Ductile Fracture by Void Growth to Coalescence
TL;DR: In this paper, the authors developed constitutive equations for porous ductile solids based on homogenization theory and developed the most widely known model for spherical and cylindrical voids.
References
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Journal ArticleDOI
The Determination of the Elastic Field of an Ellipsoidal Inclusion, and Related Problems
TL;DR: In this paper, it is shown that to answer several questions of physical or engineering interest, it is necessary to know only the relatively simple elastic field inside the ellipsoid.
Journal ArticleDOI
Measurement of Elastic Constants at Low Temperatures by Means of Ultrasonic Waves–Data for Silicon and Germanium Single Crystals, and for Fused Silica
TL;DR: In this article, the authors measured velocities of propagation and elastic constants in the 10-30 cm range of a fused silica rod, through polystyrene or silicone one-quarter wavelength seal, and into the solid specimen.
Journal ArticleDOI
Work hardening of dispersion-hardened crystals
TL;DR: In this article, a new theory of work hardening in dispersion-hardened single crystals is described, which is based on the fact that, if the particles do not deform plastically, and the interface between particle and matrix does not fracture, then secondary slip must occur locally round each particle when the crystal is deformed, even though the crystal may appear to deform by single slip.
Journal ArticleDOI
Ductile fracture in metals
TL;DR: In this article, Tipper et al. showed that the cup-and-cone fracture in single-phase ductile metals appears to originate at holes formed by drawing away of material from non-metallic inclusions, as suggested by Tipper.